I just found jsfiddle - a great helper when developing javascript :

(Click for larger)

I'm using it to make sure I understand the slightly obtuse highcharts examples.

Great!

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The charting of electricity usage are improving as my understanding of highcharts is improving - and they now look better

(Click for larger)

It is of course difficult to use the dynamic zoom features in a static image as the one I have embedded here (-; .

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My first try at generating nice javascript graphs (using highcharts) from the Wattson electricity consumption meter :

nb! All text x-axis text is wrong, and the header text is wrong as well. (Did I mention that this was my first try)

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As I really want to learn Ruby On Rails - and as I have chosen to build a "dashboard" for our home monitoring system (and not wanting to do it in Flash - as we have both iPhones and iPads) I found a ruby gem called "acs_as_dashboard" to start off with (version 0.4.0 for those that are interested).

But after wrestling with it on and off for 2 days and still not managing to get the application up and running I managed to find a downloadable demo called "acts_as_dashboard_example" - downloaded it, and it worked immediately!
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The software measure our gas usage in the house is coming along slowly - I have attached a LDR to one of the Jeenodes and found out the light level when just the pilot light is on, and the light level when the burner is on.

so I can now detect the transitions when the boiler turns on and when it turns off, and from there calculate how long it was turned on for.

This all looks a bit strange at the moment :

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